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The maximum weight the rocket burn is 15000N or 15kNNow in the question rocket burns the fuel at the rate 300g/s . we are supposed to deduce the maximum weight the rocket burn have if its going to move vertically upward.As per Classical Mechanics , overall momentum of the system is conserved biding all conservational laws. Force= mass x acceleration F= m dv/dtF=v dm/dtv=500m/sdm/dt=300F=500 x 300 =15kNTo understand such concept of maximum weight:https://brainly.in/question/17352492#SPJ1